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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates.*/
#include <test_progs.h>
#include <network_helpers.h>
#include "test_ldsx_insn.skel.h"
static void test_map_val_and_probed_memory(void)
{
struct test_ldsx_insn *skel;
int err;
skel = test_ldsx_insn__open();
if (!ASSERT_OK_PTR(skel, "test_ldsx_insn__open"))
return;
if (skel->rodata->skip) {
test__skip();
goto out;
}
bpf_program__set_autoload(skel->progs.rdonly_map_prog, true);
bpf_program__set_autoload(skel->progs.map_val_prog, true);
bpf_program__set_autoload(skel->progs.test_ptr_struct_arg, true);
err = test_ldsx_insn__load(skel);
if (!ASSERT_OK(err, "test_ldsx_insn__load"))
goto out;
err = test_ldsx_insn__attach(skel);
if (!ASSERT_OK(err, "test_ldsx_insn__attach"))
goto out;
ASSERT_OK(trigger_module_test_read(256), "trigger_read");
ASSERT_EQ(skel->bss->done1, 1, "done1");
ASSERT_EQ(skel->bss->ret1, 1, "ret1");
ASSERT_EQ(skel->bss->done2, 1, "done2");
ASSERT_EQ(skel->bss->ret2, 1, "ret2");
ASSERT_EQ(skel->bss->int_member, -1, "int_member");
out:
test_ldsx_insn__destroy(skel);
}
static void test_ctx_member_sign_ext(void)
{
struct test_ldsx_insn *skel;
int err, fd, cgroup_fd;
char buf[16] = {0};
socklen_t optlen;
cgroup_fd = test__join_cgroup("/ldsx_test");
if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /ldsx_test"))
return;
skel = test_ldsx_insn__open();
if (!ASSERT_OK_PTR(skel, "test_ldsx_insn__open"))
goto close_cgroup_fd;
if (skel->rodata->skip) {
test__skip();
goto destroy_skel;
}
bpf_program__set_autoload(skel->progs._getsockopt, true);
err = test_ldsx_insn__load(skel);
if (!ASSERT_OK(err, "test_ldsx_insn__load"))
goto destroy_skel;
skel->links._getsockopt =
bpf_program__attach_cgroup(skel->progs._getsockopt, cgroup_fd);
if (!ASSERT_OK_PTR(skel->links._getsockopt, "getsockopt_link"))
goto destroy_skel;
fd = socket(AF_INET, SOCK_STREAM, 0);
if (!ASSERT_GE(fd, 0, "socket"))
goto destroy_skel;
optlen = sizeof(buf);
(void)getsockopt(fd, SOL_IP, IP_TTL, buf, &optlen);
ASSERT_EQ(skel->bss->set_optlen, -1, "optlen");
ASSERT_EQ(skel->bss->set_retval, -1, "retval");
close(fd);
destroy_skel:
test_ldsx_insn__destroy(skel);
close_cgroup_fd:
close(cgroup_fd);
}
static void test_ctx_member_narrow_sign_ext(void)
{
struct test_ldsx_insn *skel;
struct __sk_buff skb = {};
LIBBPF_OPTS(bpf_test_run_opts, topts,
.data_in = &pkt_v4,
.data_size_in = sizeof(pkt_v4),
.ctx_in = &skb,
.ctx_size_in = sizeof(skb),
);
int err, prog_fd;
skel = test_ldsx_insn__open();
if (!ASSERT_OK_PTR(skel, "test_ldsx_insn__open"))
return;
if (skel->rodata->skip) {
test__skip();
goto out;
}
bpf_program__set_autoload(skel->progs._tc, true);
err = test_ldsx_insn__load(skel);
if (!ASSERT_OK(err, "test_ldsx_insn__load"))
goto out;
prog_fd = bpf_program__fd(skel->progs._tc);
err = bpf_prog_test_run_opts(prog_fd, &topts);
ASSERT_OK(err, "test_run");
ASSERT_EQ(skel->bss->set_mark, -2, "set_mark");
out:
test_ldsx_insn__destroy(skel);
}
void test_ldsx_insn(void)
{
if (test__start_subtest("map_val and probed_memory"))
test_map_val_and_probed_memory();
if (test__start_subtest("ctx_member_sign_ext"))
test_ctx_member_sign_ext();
if (test__start_subtest("ctx_member_narrow_sign_ext"))
test_ctx_member_narrow_sign_ext();
}
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